Fish blocking electric grid device
By using a fixed column, a motor-driven winding system, and an interception net structure, the problem of existing fish-blocking electric grid devices being easily damaged when the water level changes has been solved. This has enabled height adjustment of the electric grid and interception of debris, improving the interception effect and equipment lifespan, while reducing maintenance costs.
Patent Information
- Application Number
- CN202520347877.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing electric fish barrier devices are prone to damage when the water level changes, cannot adapt to water level fluctuations, and cannot effectively intercept debris in the water flow, resulting in short equipment life and high maintenance costs.
The system employs a combination of a fixed column, a first motor, a lead screw, a connecting plate, a winding box, a second motor, a winding wheel, an electric grid body, a lower sleeve, an inner sleeve column, threaded holes, a fixing pin, and an interception net to achieve the winding and height adjustment of the electric grid. An interception plate is installed to intercept debris and prevent direct impact. The distance between the electric grid and the interception net is adjusted to adapt to changes in water level.
It improves the interception effect of the electric grid, extends the service life of the equipment, reduces maintenance costs, enhances the ability to intercept debris in the water flow, and adapts to changes in water level.
Smart Images
Figure CN223929346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fish ecological protection technology, and in particular to a fish-blocking electric fence device. Background Technology
[0002] In hydropower projects, fish-blocking systems primarily aim to effectively intercept and guide migratory fish, ensuring the smooth operation of hydropower station units and helping migratory fish find their way upstream. This also effectively protects the biodiversity of wild fish populations, reduces the impact of hydropower facilities on the natural ecological environment, and achieves ecological harmony. Commonly used fish-blocking grate types include riverbed-buried, tower-suspended, and surface-floating pontoon types. Riverbed-buried grate types have poor adaptability and require strict control over the riverbed, debris, and construction conditions. Tower-suspended grate types, with both ends fixed to the top of the tower, cannot adapt to changes in water level or the impact of floods.
[0003] Chinese patent website discloses a lifting pulse fish barrier device with patent number "CN215684329U". This device uses multiple concrete columns arranged along the width of the river channel on a foundation. An electric barrier is installed between adjacent columns. A steel frame is mounted on top of each column, and a traction device is installed on the steel frame. The traction device is connected to the electric barrier and is used to raise and lower it. The electric barrier moves up and down under the action of the traction device to adapt to changes in water level. However, during use, the electric barrier is easily damaged by impacts from debris in the water, rendering it inoperable. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a fish-blocking electric grid device. Through the cooperation of a fixed column, a first motor, a lead screw, a connecting plate, a winding box, a second motor, a winding mechanism, the electric grid body, a lower sleeve, an inner sleeve column, threaded holes, a fixing pin, and an interception net, the electric grid body can be wound up. When encountering changes in water level, the winding box can be moved to adjust the height of the electric grid, allowing the grid to follow the water level changes and improving the interception effect. The interception plate can intercept debris in the water flow, preventing debris from directly impacting the electric grid and causing damage, thus extending its service life, reducing maintenance costs, and allowing the distance between the electric grid body and the interception net to be adjusted for better interception.
[0005] This utility model also provides a fish-blocking electric grid device as described above, comprising: a fixed column, a first motor fixedly connected to the upper surface of the fixed column, a lead screw fixedly connected to the output end of the first motor, a connecting plate rotatably connected to the outer surface of the lead screw, a winding box fixedly connected to the outer surface of the connecting plate, a second motor fixedly connected to the inner surface of the winding box, a winding wheel fixedly connected to the output end of the second motor, and an electric grid body provided on the outer surface of the winding wheel; a lower sleeve fixedly connected to the outer surface of the fixed column, an inner column slidably connected inside the lower sleeve, a threaded hole provided on the outer surface of the inner column, a fixing pin threadedly connected to the outer surface of the lower sleeve, and an interception net fixedly connected to the other end of the inner column. The above components allow for the winding of the electric grid body. When encountering changes in water level, the winding box can be moved to adjust the height of the electric grid, allowing it to follow the water level changes and improving its interception effect. The interception plate can intercept debris in the water flow, preventing debris from directly impacting the electric grid and causing damage, thus extending its service life, reducing maintenance costs, and allowing the distance between the electric grid body and the interception net to be adjusted for better interception.
[0006] According to the fish-blocking electric grid device of this utility model, a connecting block is fixedly connected to the lower surface of the fixed column, and the lower end of the electric grid body is fixedly connected to the outer surface of the connecting block. These components facilitate the fixation of the lower end of the electric grid, stabilizing the grid and improving the interception effect.
[0007] According to the fish-blocking electric grid device of this utility model, a sealing layer is provided inside the winding box, and the second motor is located inside the sealing layer. These components facilitate the protection of the second motor, preventing water ingress and damage, and extending its service life.
[0008] According to the fish-blocking electric grid device of this utility model, a sliding block is fixedly connected to the end of the winding box away from the fixed column, and the sliding block is slidably connected to a support column. These components facilitate the stable movement of the winding box and ensure its stable operation.
[0009] According to the present invention, the fish-blocking electric grid device has an arc-shaped interception net. This facilitates the interception of debris, and the intercepted debris is caused to flow away due to the impact of the water flow.
[0010] According to the fish-blocking electric grid device of this utility model, the fixed column is provided with a slot, and the lead rod is located in the slot. These components facilitate the protection of the lead rod.
[0011] According to the fish-blocking electric grid device of this utility model, the winding box is provided with an opening, and the electric grid body is located inside the opening. These components facilitate the winding of the electric grid body.
[0012] According to the fish-blocking electric grid device of this utility model, a protective cover is provided on the outer surface of the first motor, and the protective cover is fixedly connected to a fixing column. These components facilitate the protection of the first motor and prevent damage to it.
[0013] Beneficial effects
[0014] 1. Compared with the prior art, this fish-blocking electric grid device, through the cooperation of a fixed column, a first motor, a lead screw, a connecting plate, a winding box, a second motor, and the winding mechanism with the grid body, can perform winding work on the grid body. When encountering changes in water level, the winding box can be moved to adjust the height of the grid, so that the grid changes with the water level, thereby improving the interception effect of the grid.
[0015] 2. Compared with the existing technology, this fish-blocking electric grid device, through the cooperation of the lower sleeve, inner sleeve column, threaded hole, fixing pin and interception net, can set up an interception plate to intercept debris in the water flow, prevent debris from directly hitting the electric grid and causing damage to the electric grid, thus preventing it from working properly, improving service life, reducing maintenance costs, and can adjust the distance between the electric grid body and the interception net, thereby achieving better interception work. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is an overall structural diagram of the fish-blocking electric fence device of this utility model;
[0018] Figure 2 This utility model relates to an electric fish barrier device. Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is a partial structural diagram of the fish-blocking electric fence device of this utility model;
[0020] Figure 4 This is a structural diagram of the internal structure of the winding box of the electric fish barrier device of this utility model.
[0021] Legend:
[0022] 1. Fixed column; 2. First motor; 3. Lead screw; 4. Connecting plate; 5. Rewinding box; 6. Second motor; 7. Rewinding wheel; 8. Electric grid body; 9. Lower sleeve; 10. Inner sleeve column; 11. Threaded hole; 12. Fixing pin; 13. Interception net; 14. Connecting block; 15. Sealing layer; 16. Sliding block; 17. Support column; 18. Slot; 19. Opening; 20. Protective cover. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] refer to Figure 1-4 This utility model provides a fish-blocking electric grid device, comprising: a fixed column 1 for supporting the entire device; a first motor 2 fixedly connected to the upper surface of the fixed column 1 for providing power to drive a lead screw 3 to rotate; a protective cover 20 provided on the outer surface of the first motor 2 for protecting the first motor 2; the protective cover 20 fixedly connected to the fixed column 1; a lead screw 3 fixedly connected to the output end of the first motor 2 for rotating to drive a connecting plate 4 to move up and down; a slot 18 provided on the fixed column 1 for protecting the lead screw 3; the lead screw 3 is located in the slot 18; a connecting plate 4 rotatably connected to the outer surface of the lead screw 3 for connecting a winding box 5, thereby driving the winding box 5 to move up and down; and a winding box 5 fixedly connected to the outer surface of the connecting plate 4 for the entry and exit of the electric grid body 8.
[0025] A second motor 6 is fixedly connected to the inner surface of the winding box 5 to provide power, thereby driving the winding wheel 7 to rotate. A sealing layer 15 is provided inside the winding box 5 to block water and prevent water from entering the second motor 6 and causing damage. The second motor 6 is located inside the sealing layer 15. The output end of the second motor 6 is fixedly connected to the winding wheel 7 for rotating to wind and place the electric grid body 8. The outer surface of the winding wheel 7 is provided with the electric grid body 8 for intercepting fish. The winding box 5 is provided with an opening 19, and the electric grid body 8 is located in the opening 19. A connecting block 14 is fixedly connected to the lower surface of the fixed column 1 to fix the lower end of the electric grid body 8, thereby stabilizing the electric grid body 8. The outer surface of the connecting block 14 is fixedly connected to the lower end of the electric grid body 8. A sliding block 16 is fixedly connected to the end of the winding box 5 away from the fixed column 1 for sliding on the support column 17. The sliding block 16 is slidably connected to the support column 17 for support work.
[0026] A lower sleeve 9 is fixedly connected to the outer surface of the fixed column 1 for placing the inner sleeve 10. The inner sleeve 10 is slidably connected inside the lower sleeve 9 for sliding within the lower sleeve 9, thereby adjusting the distance between the electric grid body 8 and the interception net 13. The outer surface of the inner sleeve 10 is provided with a threaded hole 11 for inserting a fixing pin 12 to fix the inner sleeve 10. The outer surface of the lower sleeve 9 is threaded with a fixing pin 12 for fixing. The other end of the inner sleeve 10 is fixedly connected to an interception net 13 for intercepting debris in the water flow. The interception net 13 is arc-shaped to facilitate the flushing away of intercepted debris.
[0027] Working principle: When using this device, place it in the working area, adjust the distance between the electric grid body 8 and the interception net 13 by adjusting the lower sleeve column and the inner sleeve column, and fix it by inserting the fixing pin 12 into the threaded hole 11. When encountering debris in the water flow, it is intercepted by the interception net 13 to prevent the debris from impacting the electric grid body 8. Because the interception net 13 is arc-shaped, it is easy to wash away the debris. When the water level drops, the first motor 2 drives the lead screw 3 to rotate. The rotation of the lead screw 3 drives the connecting plate 4 to move. The connecting plate 4 drives the winding box 5 to move downward. The second motor 6 drives the winding wheel 7 to wind up part of the electric grid body 8, thereby achieving better interception. When the water level rises, the winding box 5 rises to release the electric grid body 8 for full interception.
[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A fish-blocking electric fence device, characterized in that, include: A fixed column (1) is fixedly connected to a first motor (2) on its upper surface. A lead screw (3) is fixedly connected to the output end of the first motor (2). A connecting plate (4) is rotatably connected to the outer surface of the lead screw (3). A winding box (5) is fixedly connected to the outer surface of the connecting plate (4). A second motor (6) is fixedly connected to the inner surface of the winding box (5). A winding wheel (7) is fixedly connected to the output end of the second motor (6). An electric grid body (8) is provided on the outer surface of the winding wheel (7). The outer surface of the fixed column (1) is fixedly connected to a lower sleeve (9), and an inner sleeve column (10) is slidably connected inside the lower sleeve (9). The outer surface of the inner sleeve column (10) is provided with a threaded hole (11), and a fixing pin (12) is threadedly connected to the outer surface of the lower sleeve (9). The other end of the inner sleeve column (10) is fixedly connected to an intercepting net (13).
2. The fish-blocking electric fence device according to claim 1, characterized in that, A connecting block (14) is fixedly connected to the lower surface of the fixed column (1), and the lower end of the electric grid body (8) is fixedly connected to the outer surface of the connecting block (14).
3. The fish-blocking electric fence device according to claim 1, characterized in that, The winding box (5) is provided with a sealing layer (15), and the second motor (6) is located inside the sealing layer (15).
4. The fish-blocking electric fence device according to claim 1, characterized in that, The winding box (5) is fixedly connected to a sliding block (16) at one end away from the fixed column (1), and the sliding block (16) is slidably connected to a support column (17).
5. The fish-blocking electric fence device according to claim 1, characterized in that, The interception net (13) is arc-shaped.
6. The fish-blocking electric fence device according to claim 1, characterized in that, The fixed column (1) is provided with a slot (18), and the lead screw (3) is located in the slot (18).
7. The fish-blocking electric fence device according to claim 1, characterized in that, The winding box (5) is provided with an opening (19), and the electric grid body (8) is located inside the opening (19).
8. The fish-blocking electric fence device according to claim 1, characterized in that, The outer surface of the first motor (2) is provided with a protective cover (20), and the protective cover (20) is fixedly connected to the fixed column (1).